SBP HD Shifter Kit JNMotors Bikes - motorized bicycle parts and accessories

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  SBP HD Shifter Kit



 
Our Price: $199.95

Product Code: JNM1162

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Description
 
Description
The SBP Shifter Kit (Jack Shaft) will fit almost any Chinese 2 Stroke and allow the user to shift gears using the bikes standard rear derailleur. It will also allow the use an internal rear hub transmission. The secret is the front freewheel allowing you to still pedal the bike normally and yet start the bike with the pedals and not have to pedal the same speed once the motor starts.  This is like running a 58 tooth rear sprocket in the stock set up all the way down to a 27 tooth. This will allow you to climb the steepest hills and still hit top speeds in excess of 40 mph without straining your engine.

Specification
•Ratios between 5.8 to 1 and 2.7 to 1
•For better use lubrication is require every month  

Package Includes
1. Cranks, spindle, front freewheel, dual sprocket and chain-ring assembly.
2. Jackshaft mounting plates including bearings, axle, sprockets, chain and mounting hardware.
3. Rear motor mount including all hardware


Average Customer Review: 5 of 5 | Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
 
Adjust motor rpms and usable torque/speed March 6, 2014
Reviewer: manuel v. from visalia, CA United States  
Excellent kit definitely recommend for all motorized bike enthusiasts. Some what complex kit just take ur time and follow directions. Used added small set screws to lock bearings in place and proper chain alignment is critical for long trouble free operation.

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